An agricultural dust collector, comprising a spray pipe (1), a handle (2), fixing screws (3), a switch (4), a carbon brush cap (5), heat dissipation holes (6), a motor housing (7), a blower housing (8), and a connecting block (9). The spray pipe (1) is disposed at the front end of the blower housing (8); the blower housing (8) is movably connected to the spray pipe (1); the spray pipe (1) consists of a water pipe joint (101), a sealing valve (102), a sealing ring (103), a pipe body (104), a water spray opening (105), a wind flowing opening (106), and a partition (107); the water pipe joint (101) is disposed on the pipe body (104); the pipe body (104) and the water pipe joint (101) are an integral structure; the sealing ring (103) is disposed inside the water pipe joint (101); the sealing ring (103) is connected to the water pipe joint (101); the water spray opening (105) is disposed at the top end of the pipe body (104); the pipe body (104) and the water spray opening (105) are an integral structure; the part
